The 2-10-2 wheel arrangement – also called the "Santa Fe" type got its name from the AT&SF, since they had such a large fleet of them – about 250 locomotives. The 3800 class was the largest 2-10-2’s on the railroad, and like most AT&SF power was built by Baldwin. The 2-10-2 was an improvement on the 2-10-0 "Decapod" type – the trailing truck was added to help guide the engine in reverse.

One of the 3800’s - #3829 - was fitted with a four-wheel trailing truck and became the first 2-10-4. It proved successful and many more 2-10-4 "Texas" types were built.

The BLI model represents the locomotives as rebuilt to burn oil

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AT&SF 3800 Class Details

The factory installed Quantum sound system will feature the following:

• Authentic AT&SF 3800 Class Engine Sounds
  
• Synchronized Chuff
  
• Authentic AT&SF 3800 Class Engine Whistle
  
• Authentic AT&SF 3800 Class Bell
  
• Squealing brakes
  
• Doppler effect
  
• Steam Dynamo (Sound of steam electric generator (dynamo) when lights turn on. Includes gradual headlight turn-on effect as dynamo speeds up.)
  
• Sound of Power (change in chuff sounds with differing loads for more realism)
  
• Coupler Crash
  
• Air let off (in neutral)
  
• Air pumps (in neutral)
  
• Numerous Water sounds (in neutral - blow down, pop off & injector)
  
• Blower hiss
  
• Headlight (dim head light in neutral)

Mechanical features will include:

• Powerful 5-pole can motor with flywheel
  
• Die-cast locomotive chassis
  
• Die-cast tender chassis
  
• Detailed tender underbody
  
• Plated bell & whistle
  
• Deck plate from cab to tender
  
• Many exceptional prototypical added-on details like piping and appliances
  
• Prototypical cab interior, including backhead, etc.
  
• Operating headlight
  
• Directional backup light
  
• Illuminated Headlight Number Board
  
• Authentic paint scheme and correct locomotive numbers
  
• Magnetic knuckle coupler on locomotive front and tender rear
  
• RP-25 contour on drivers and wheels
  
• Will operate on Code 70, 83 and 100 rail
  
• 22" Radius recommended for best